Until my recent Great Planes Electric Cub build, I have not used Monokote since 1990, that was my last RC build. I used Monokote on my Electricub and I have not noticed a difference from the last time I used it. I have recently read the post re: Monokote has changed, but still I have not noticed. From what I remember I always had to put the Monokote on tight and wrinkle free before using my Heat to shrink it tight. For the last few years I have been building freeflight balsa models, trust me, Monokote is awsome when compared to using tissue.
Monokote on Electricub

Domestic Guillows Tissue